From the initial 202,586 applicants, only 100 hopefuls have been selected to proceed to the next round of the Mars One Astronaut Selection Process.
Only eight of them are from the UK, including 22-year-old Durham student Hannah Earnshaw.
The candidates are one step closer to becoming the first humans on Mars. There is one drawback however, the mission is one way.
The spacecraft that will take them to the red planet has not yet been built, but it is very unlikely it will have to capability to make it back home.
Despite the drawbacks, Hannah remains excited by the challenge ahead.
"I am optimistic about the mission in general," says Hannah, "which is to establish a home on another planet. And the candidates that go there will make a home for themselves, and life for themselves.
"It's not some kind of exile. It's a new start."
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